Eraser-shield.



No. 729,062. PATBNTED Muze, 190s.

n.3. armo. BRASBR SHIELD.

APPLICATION FILED PEB. 12, 1903.

.N0 MODEL.

WITNEEEEE- EPatented. May 2B, T1903.

PATENT OFFICE.

HENRY E. GERO, OF SOMERVILLE, MASSACHUSETTS.

ERASER-SHIELD.

SPECIFICATION forming part of Letters Patent No. 729,062, dated May 26,1903. Application led February 12, 1903. Serial No. 1 43,080. (Nomodel.)

T0 a/ZZ whom it' may concern:

Be it known that I, HENRY E. Gnao, a citizen of the United States,residing at Somerville, in the county of Middlesex and State ofMassachusetts, have invented certain new and useful Improvements inEraser-Shields; and I hereby declare that the following is a full,clear, and exact description of the same, reference being had to theaccompanying drawings, forming part of this specification.

The invention has reference to improvements in devices designed toshield or protect the main portion of written or printed matterimmediately surrounding a letter or word during the erasing of suchletter or word.

One object of the invention is to so construct an eraser-shield that itcan be accurately positioned and held for the erasing of a letter or`symbol located between two other letters or symbols.

Another object of the invention is to so construct a shield of thisnature that it may be held firmly in position on a flat or curvedsurface.

Another object of the invention is to so oonstruct a shield of thisnature that the shield portion may be renewed from time to time.

Another object of the invention is to so construct a shield of thisnature that it may be engaged, positioned, and held in place by a singledigital.

The invention consists in such peculiar features of construction andcombinationofparts whereby the objects of the invention are carried intoeffect, as will in its preferred form be hereinafter more fullydescribed,and pointed out in the claims.

Figure l represents a plan view of the improved erasershield positionedfor the erasing of printed matter from a sheet of paper carried byacylinder, as the roll of a type-writer. Fig. 2 represents a sideelevation of the same, showing the manner of engaging and lifting theshield, preferably by the thumb of the left hand. Fig. 3 represents anend View of the shield shown as arranged for a curved surface andillustrating the gripping means on the under surface of theshield-carrier. Fig. 4 represents a side elevation of the shield properin relation to a sectional view of the shield-carrier to indicate theextension of the under surface of shield proper in line with the planeof the under surface of the carrier. Fig. 5 represents a plan view ofthe keeper for securing the shield to the carrier, the thumb-cap beingomitted.

Similarnumbers of reference designate corresponding parts throughout.

This eraser shield or guard comprises a shield proper formed ofcomparatively thin smooth material, such as celluloid, having openingsof any desired size cr shape through which access may be had to theletter, word, or symbol to be erased, while the adjacent letters areprotected. This shield or guard is mounted on a carrier, by means ofwhich it (the shield) is positioned and held from movement under therubbing contact ofthe eraser.

As illustrated in the drawings, in its preferred form the carriercomprises the plate 6, having a cross-sectional configuration adapted toconform to the surface on which the shield isintended for use. The lowersurface of this plate is roughened or provided with gripping porti0ns,asshown at 7, Fig. 3, Whereby this surface may be engaged with the surfaceof the paper therebeneath and when held against said paper may besecurely positioned against accidental displacement. The edges of thisplate 6 are turned inward to form the lips 8 8.

The keeper 9 has the members 10 10, adapted to be slightly crowdedtogether and entered under the lips 8 8 of the plate 6. At its forwardend this keeper has the depending lip 1l, which extends down over thefront edge of the plate 6, the edge of this lip conforming generally tothe cross-sectional conguration of this plate. The upper surface of thekeeper 9 is preferably furnished with the cap 12, adapted to receive theend portion of a finger or thumb, preferably the latter, whereby theshield may be lifted into position.

The shield proper is formed from a piece of thin liexible material of atransparent or semitransparent nature, such as celluloid. It has thecarrier portion 13, located between the upper surface of the plate 6 andthe under surface of the keeper 9, and the shield por tion 14, extendingin the plane of the under surface of the plate 6 and held in thisposition by the lip 1l of the keeper, the shield a plate having securingmembers on its up- 4o portion 14 being furnished with openings of anydesired shape or size.

In Fig. 5 I have shown a keeper 9 Without the cap 12, as it is obviousthat this construction might be preferred for some uses.

Reference to Fig. 3 will indicate the engagement ofthe gripping-surface7 with the surface of the paper from which the erasure is to be made,whereby accidental displacement of the shield under the rubbing contactof the eraser is prevented, while reference to Figs. l and 2 willindicate the precision with which the shield may be adjusted to bringthe opening-for instance, thatthrcugh which the letter Fappears-immediately over the ,particular letter to be erased, thisaccurate adjustment beingpos'sible from the bearing of the shieldportion 14 directly 0n the paper while held in position by the carrier.

I do not desire to limit myself to the exact construction herein shownand described, but only as herein claimed.

Having thus described myinvention, I claim as new and desire to secureby Letters Patent- I. In an eraser-shield acarrier, and a shield securedto the upper portion of the carrier and bent downward beyond the carrierto the plane of the lower surface of the carrier.

2. In an erasei'shield, a shield having por tions extending in planesparallel to, but removed from each other, and a mounting for saidshield.

3. In an eraser-shield, a carrier having a roughened contact-surface,and a shield eX- tending from the carrier, to forni a smoothcontinuation of said surface.

4. In an eraser-shield, a carrier comprising per surface, a keeperadapted to engage such members, and a shield adapted to be removablysecured to said carrier by the keeper.

5. In an eraser-shield, a carrier comprising a plate having'inturnedlips, a keeper Working under said lips, and a shield having a portionlocated between the plate and the keeper.

6. In an eraser-shield, a carrier comprising a plate having a conoavedroughened surface, and a shield secured to such carrier and having aportion forming an extension of such roughened surface. y

7. In an eraser-shield, a carrier comprising a plate having a coneavedroughened surface, a keeper having a lip extending over one end of saidplate, and a shield having a portion located between the keeper and saidplate and a bent portion between the lip of the keeper and the end ofthe plate.

8. In an eraser-shield, acarrier comprising a plate having a roughenedsurface and inturned lips, a keeper fitting beneath said lips and havinga thumb-cap, and a shield secured to said plate by said keeper.

9. In'an eraser-shield, the combination with the plate 6, having theroughened surface 7 and the lips 8 8 and the keeper 9 having the members10 l0, engageable beneath said lips, and the lip 11, of the shield 14having the portion 13 secured by the keeper, as and for the purposedescribed.

In testimony whereof I afx my signature in presence of two witnesses.

HENRY E. GERO.

Witnesses:

W. STANLEY CAMPBELL, HENRY J. MILLER.

